This circuit for generating precise reference signals was found in the April 1973 issue of Radio Electronics magazine. The circuit generates 100 kHz signals according to the crystal used.
This filter has the components calculated for the frequency of 1 kHz but can be changed. The input...
This capacimeter was obtained in European documentation from the 1980s. The indicator instrument, a...
This circuit was found in the Optoelctronics Sourcebook from Texas Instruments. The circuit has a...